This leave-in molecular repair hair mask works on a molecular level to repair even the most extreme damage leaving strands strong, soft, smooth, and with the bounce of hair like new. 

IN the shower 

• Shampoo, skip the conditioner (K18 has you covered post-shower) 

OUT of the shower 

• Towel dry hair until damp 
• Start with one pump and add more as needed depending on length, thickness, and condition. P.S. Our concentrated formula means a little goes a long way.
• Work evenly into hair, one pump at a time, working from ends to roots. 
• Leave for 4 minutes to activate 
• Style as usual once the 4-minute window is up

Not sure how much to use? Check out the chart below to find your perfect dosage.